var CANVAS_WIDTH = 320;
var CANVAS_HEIGHT = 568;

var FPS_TIME      = 1000/24;

var STATE_LOADING = 0;
var STATE_MENU    = 1;
var STATE_HELP    = 1;
var STATE_GAME    = 3;

var ON_MOUSE_DOWN = 0;
var ON_MOUSE_UP   = 1;
var ON_MOUSE_OVER = 2;
var ON_MOUSE_OUT  = 3;
var ON_DRAG_START = 4;
var ON_DRAG_END   = 5;

var NUM_LINES = 2;
var MAX_STARTING_SPEED;
var INCREASE_SPEED_UP_INTERVAL;
var INCREASE_SPEED;
var DISTANCE_AMONG_OBSTACLES;
var ACCELLERATION;
var SCORE_INCREASE;
var MALUS_SCORE;
var NUM_LIVES;

var BUT_LEFT_X   = 40;
var BUT_LEFT_Y   = 544;
var BUT_RIGHT_X  = 280;
var BUT_RIGHT_Y  = 544;
